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Overcoming Degradation in Organic Photovoltaics: Illuminating the Role of Fullerene Functionalization: Preprint

Description: Photobleaching rates are investigated for thin films of poly(3-hexylthiophene) (P3HT) blends employing either an indene-C60 bisadduct (ICBA) or [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the electron acceptor. Relative to the bisindene, PCBM significantly enhances resistance to photobleaching of the P3HT donor polymer. We tentatively attribute a decrease in the charge transfer rate as the mechanism responsible for the more rapid photobleaching in the sample containing the bisindene ad… more
Date: July 1, 2011
Creator: Lloyd, M. T.; Garcia, A.; Berry, J. J.; Reese, M. O.; Ginley, D. S. & Olson, D. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Amorphous Indium-Zinc-Oxide Transparent Conductors for Thin Film PV: Preprint

Description: Amorphous InZnO's (a-IZO) basic PV applicability has now been demonstrated in prototype CIGS, Si Heterojunction (SiHJ) and organic photovoltaics (OPV). However, to move beyond initial demonstration devices, improved TCO properties and processibility of the a-IZO films are needed. Here, RF-superimposed DC sputtering was used to improve the reliable deposition of a-IZO with conductivity > 3000 S/cm.
Date: July 1, 2011
Creator: Perkins, J.; Gennett, T.; Galante, M.; Gillaspie, D. & Ginley, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Understanding Degradation Pathways in Organic Photovoltaics (Poster)

Description: Organic Photovoltaics (OPVs) recently attained power conversion efficiencies that are of interest for commercial production. Consequently, one of the most important unsolved issues facing a new industry is understanding what governs lifetime in organic devices and discovering solutions to mitigate degradation mechanisms. Historically, the active organic components are considered vulnerable to photo-oxidation and represent the primary degradation channel. However, we present several (shelf life … more
Date: February 1, 2011
Creator: Lloyd, M. T.; Olson, D. C.; Garcia, A.; Kauvar, I.; Kopidakis, N.; Reese, M. O. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Novel Way to Characterize Metal-Insulator-Metal Devices via Nanoindentation: Preprint

Description: Metal-Insulator-Metal (MIM) devices are crucial components for applications ranging from optical rectennas for harvesting sunlight to infrared detectors. To date, the relationship between materials properties and device performance in MIM devices is not fully understood, partly due to the difficulty in making and reproducing reliable devices. One configuration that is popular due to its simplicity and ease of fabrication is the point-contact diode where a metal tip serves as one of the metals i… more
Date: July 1, 2011
Creator: Periasamy, P.; Packard, C. E.; O?Hayre, R. P.; Berry, J. J.; Parilla, P. A. & Ginley, D. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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